Device for softening putty



Jan. 28, 1941. c. H. NICHOLS Filed May 8, 1937 DEVICE FOR SOFTENING PUTTY 27 y 3 .34 Q I I 3 Ill I 37 36 35 m E IYTbR.

ATTORNE Patented Jan. 28, 1941 UNITED STATES PATENT 4 Claims.

My invention relates to a device for softening putty in window frames, etc.

An object of my invention is to provide a means for softening putty which allows the use 5 of heat on the window frame without injury to the Window pane.

A further object of my invention is to provide constant heat so that the putty is softened in a minimum of time and so that the removing process can be accomplished systematically.

A further object of my invention is to provide a device which can be used with a standard blow torch or attached thereto to accomplish the above mentioned objects.

A further object of my invention is to provide all the above mentioned objects in a construction which can be made at a very reasonable cost.

With these and other objects in View, my invention consists in the construction, arrangement and combination of the various parts of my device, whereby the objects contemplated are attained, as hereinafter more fully set forth, pointed out in my claims, and illustrated in the 25 accompanying drawing, in which:

Figure 1 is a side elevation of the device,

Figure 2 is a front view of Figure 1 taken along the lines 22 thereof in section, and

Figure 3 is a front view of Figure 1 showing the horizontal positioning of the heat concentrating chamber.

In removing putty from window frames, by far the simplest method is to heat the same so that the putty is softened and then remove the 35 putty by means of a blade, etc. The heat process,

however, usually involves difficulties in that the heat spreads in an unconfined area and is apt to reach the glass in the window pane or parts of the frame itself thereby causing injury to the pane. A principal object of my invention is to eliminate these objections and to concentrate the heat thus applied.

My invention is shown in Figure 1 in which a suitable chamber 26 having converging sides I4 45 and I5, terminates in the opening l8 which opening is bevelled as at l9, and. includes the small extending bars 21 attached thereto, which bars are attached at 28 to the ring 29. The ring 29 includes the circular opening 30, which re- 50 ceives centrally the cylindrical blow torch member 3 l. The ring 30 is received about the periphery thereof within overlapping flanges 32, which overlap sufiiciently to retain the disc 29.

The flanges 32 terminate into a further mem-- ber 33 integrally formed therewith, which member extends into the arm 34, which is attached at 35 to the circular band 36 which is suitably secured at 31 to the blow torch 24.

This then provides a rigid structure supporting the heat concentrating chamber 25. A small wooden or other heat insulating knob 38 is provided which is attached at 39 to the chamber 26. The use of this device provides a unit which requires the use of only one hand and also allows the blow torch 24 to be positioned Vertically at all times since the chamber 26 can be turned in any direction by virtue of the circular disc 29, so that the bevel IQ of the opening [8 can be used to accommodate either vertical sections of putty or horizontal sections, so that said bevel will correspond in any of the four positions by simply turning the chamber 26, by means of the knob 38, correspondingly.

A horizontal position is illustrated in Figure 3 for the upper horizontal putty removing process and the chamber 26 can be swung about 180 for the lower horizontal operation.

Small indentations 40 are provided in the flanged portion 32 with a corresponding opening in the disc 29 so that the member 26 will be locked in any of the four positions necessary.

By this construction the bevel is suitably accommodated in all positions.

The foregoing construction, therefore, provides the unit which is attachable to a standard blow torch and is conveniently operated.

It will now be seen that I have provided a putty removing means which concentrates the heat without injury to a window pane, which softens the putty in a minimum of time, which can be used with a standard blow torch, which will permit softening of putty in any position without tipping the blow torch and which can be manufactured at a reasonable cost.

Some changes may be made in the construction and arrangement of the parts of my invention without departing from the real spirit and purpose of my invention, and it is my intention to cover by my claims any modified forms of structure or use of mechanical equivalents, which 5 may be reasonably included within their scope.

I claim as my invention:

1. A putty softening device comprising a hollow heat concentrating chamber including convergent flat side walls, an opening at the termination thereof, means for attaching said chamber to a blow torch, including a bracket attached to the blow torch, an annular flanged member having an opening attached to the bracket, a disc member having an opening received within said flanged member to allow selective positioning thereof, said heat concentrating chamber spaced from and attached to said disc.

2. A putty softening device comprising a hollow heat concentrating chamber including convergent flat side walls, an opening at the termination thereof, means for attaching said chamber to a blow torch, including a bracket attached to the blow torch, an annular flanged member having an opening attached to the bracket, a disc member having an opening received within said flanged member to allow selective positioning thereof, said heat concentrating chamber spaced from and attached to said disc, said heat concentrating chamber having a bevelled opening terminating at the'ends of said convergent walls, said bevel adapted to directly coincide with a bevelled puttied surface corresponding to either horizontal or vertical positioning of said chamber.

3. A putty softening device comprising a hollow heat concentrating chamber including convergent flat side walls, an opening at the termination thereof, means for attaching said chamber to a blow torch, including a bracket attached to the blow torch, an annular flanged member having an opening attached to the bracket, a disc member having an opening received within said flanged member to allow selective positioning thereof, said heat concentrating chamber spaced from and attached to said disc, said heat concentrating chamber having a bevelled opening terminating at the ends of said convergent walls, said bevel adapted to directly coincide with a bevelled puttied surface corresponding to either horizontal or vertical positioning of said chamber, said disc opening positioned to receive the blow torch flame centrally therethrough.

4. A putty softening device comprising a hollow heat concentrating chamber including convergent flat side walls, an opening at the termination thereof, means for attaching said chamber to a blow torch, including a bracket attached to the blow torch, means cooperatively associated with said bracket to provide any selected angular positioning of said chamber in any desired plane, including an annular flanged member attached to the bracket, a disc member received within the flanged member, said disc member being attached to said heat concentrating chamber.

CHARLES H. NICHOLS. 

